Metformin-d6-HCl, 100μg/ml in MeOH, 5ml

Carbonyl DNPH Derivative Mix, 100µg/ml in AcN, 1ml

Sodium DL-3-hydroxybutyrate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 150-83-4

Naphthalene-d8, 1000µg/ml in MeOH, 1ml